Mauro signed with the Giants on Monday, Michael Eisen of the team's official site reports.

Mauro spent the past four season in Arizona where he racked up 75 combined tackles and two sacks over the course of four seasons. It's unsure how he'll fit in with New York, but the 27-year-old has ties to new Giants defensive coordinator James Bettcher.

Webb signed a one-year deal with the Giants on Monday, Ian Rapoport of NFL Network reports.

The 27-year-old spent last year in Cleveland but will look to help the Giants turn the page on one of the team's worst defensive seasons in recent memory. As of right now, it looks like Webb will function mostly as a depth corner, but given the uncertainty regarding the new regime's vision for the defense, Webb could wind up playing valuable snaps somewhere down the road in New York.

Wynn re-signed with the Giants on Monday, Jordan Raanan of ESPN.com reports.

Wynn's one-year deal will keep the Richmond native in New York for at least the 2018 season. Although Wynn serves primarily as a backup, the Giants feel comfortable with the 27-year-old's versatility to play both inside and outside. With a new defensive scheme and switch to an attacking 3-4 defense, New York will need all the help it can get from a deep front seven.

The Giants would've needed to release Manning by 4 p.m. on Saturday to avoid paying him the bonus. This leaves no question he's part of the team's plan for 2018, though his presence on the roster doesn't preclude the use of the No. 2 overall pick on a quarterback. The Giants recently gave LT Nate Solder the largest contract for an offensive lineman in league history, perhaps making up for the losses of C/G Weston Richburg (concussion) and G Justin Pugh (back) in free agency. The team has an impressive group of young pass catchers and also signed G Patrick Omameh away from Jacksonville, but there's still work to be done along the offensive line before Week 1.

Riley signed a contract with the Giants on Friday, Michael Eisen of the team's official site reports.

Riley appeared in 11 games for the Titans over the past two seasons but didn't log a snap on defense until 2017, when he racked up 12 tackles, two pass breakups and one interception in seven games. He should remain in a backup role with Giants and isn't on the IDP radar ahead of the 2018 campaign.